16"W X 25"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 25.875"H] sidewall Crafted for durability and rust-resistance CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling

Crafted for durability and rust-resistance

+ Product Details Size - 26"w X 36"h is the size for the duct opening measurement only

+ Product Details Size – 24"w X 6"h is the size for the duct opening measurement only

adds an extra layer of protection

Never Rust Plastic 2-Way Vertical Air Supply Register

16"W X 25"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 25.875"H] sidewall Crafted for durability and rust resistance CL 34 12B 35 Product Details Size 6 Extruded Aluminum Ceiling Crafted for durability and rust resistance + Product Details Size 26"w X 36"h is the size for the duct opening measurement only